Turner Motorsport Power Pulleys for the BMW S85 V10
The biggest drawback with belt-driven accessory systems, is that it takes precious horsepower to turn them. Turner Motorsport method of regaining some of the power lost to the parasitic drag effect is to underdrive the system.
Turner Power Pulleys remove parasitic loss allowing for faster revs off the line. These are designed to be stronger, lighter, and to look similar to the factory parts. These are designed in 6061-t6 aluminum finish, hard anodized coating black coating for lightweight and good looks.
Put the power down
Fits: BMW
E60 M5 (2007-2010)
E63 M6 (2006-2010)
E64 M6 (2006-2010)
Adds up to 18 to 22 HP and 17 to 21 Ft/lbs torque on a stock M5 or M6!
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Ships on Aug 3, 2026